diff --git a/.gitignore b/.gitignore
index 112b9f6..4104245 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,4 +9,5 @@ generic_data/ParamTemplate/
 generic_data/ParamInfo/*.xml
 js/lib/ext/
 help/
+php/bin
 *~
diff --git a/install-scripts.sh b/install-scripts.sh
new file mode 100755
index 0000000..32d4b4b
--- /dev/null
+++ b/install-scripts.sh
@@ -0,0 +1,15 @@
+#!/bin/bash
+
+# script to compile/install php/src C executables
+
+# AMDA_IHM installation root
+export IHM_DIR=/home/budnik/AMDA/AMDA_IHM
+
+export CDF_DIR=/usr/local/cdf
+export CEF_DIR=/usr/local/cef
+export DD_LIB=/usr/local/DDClient/lib
+export DD_INCLUDE=/usr/local/DDClient/include/DDClientLibC
+
+cd $IHM_DIR/php/src &&  make clean && make && make install && make clean
+cd $IHM_DIR 
+
diff --git a/php/src/Makefile b/php/src/Makefile
index 2c5890c..608bcc0 100644
--- a/php/src/Makefile
+++ b/php/src/Makefile
@@ -1,16 +1,16 @@
-INC = -I/usr/include -I/usr/local/include -I/usr/local/cdf/include -I/usr/local/cef/include -I/home/budnik/AMDANEW/DDLIB/include
-LIB = -L/usr/lib -L/usr/local/lib  -L/usr/local/cdf/lib  -L/usr/local/cef/lib -L/home/budnik/AMDANEW/DDLIB/lib
-CFLAGS = -ggdb -DLINUX -march=i686 -fPIC -Dlinux -D_REENTRANT -malign-double
+INC = -I/usr/include -I/usr/local/include -I${CDF_DIR}/include -I${CEF_DIR}/include -I${DD_INCLUDE}
+LIB = -L/usr/lib64 -L/usr/local/lib64  -L${CDF_DIR}/lib  -L${CEF_DIR}/lib -L${DD_LIB}
+CFLAGS = -ggdb -DLINUX -m64 -march=core2 -fPIC -Dlinux -D_REENTRANT -malign-double 
 CC = gcc
 
 EXE = nctimestring2double nctimeinfo getncvars ncvarinfo \
       cefstartstop cefvarinfo cefinfo cefsampling ceftimeinfo \
       cdfinfo cdfvarinfo cdfstartstopfromdata cdfsamplingfromdata
 
-lib: $(EXE)
+lib: ${EXE}
 
 nctimestring2double: nctimestring2double.o
-	${CC} -o nctimestring2double nctimestring2double.o ${LIB} -lDD -lnetcdf
+	${CC} -o nctimestring2double nctimestring2double.o ${LIB} -lDDClientLibC -lnetcdf
 
 nctimestring2double.o: nctimestring2double.c
 	${CC} ${CFLAGS} -c nctimestring2double.c ${INC}
@@ -88,11 +88,12 @@ cdfsamplingfromdata.o: cdfsamplingfromdata.c
 	${CC} ${CFLAGS} -c cdfsamplingfromdata.c ${INC}
 
 install:
-	cp $(EXE) ../bin
+	install -d -m a+rx,ug+w ${IHM_DIR}/php/bin
+	cp ${EXE} ${IHM_DIR}/php/bin
 
 clean:	
 	tag="*.o ${EXE}";\
-        for file in $$tag; do \
+	for file in $$tag; do \
 	echo $$file; rm -f $$file;\
 	done
-	find -name \*~ -delete	
\ No newline at end of file
+	find -name \*~ -delete	
diff --git a/php/src/nctimeinfo.c b/php/src/nctimeinfo.c
index bc93039..0bc95d8 100644
--- a/php/src/nctimeinfo.c
+++ b/php/src/nctimeinfo.c
@@ -55,7 +55,7 @@ main(int argc, char **argv)
 		 
 	for (i = 0; i < 2; i++) {
 	   sampling = time_double[i+1] - time_double[i];
-	   if (sampling < sampling_min) sampling_min = sampling;	  
+	   if (sampling < sampling_min && sampling > 0.0) sampling_min = sampling;	  
 	 }
 	  
 	 printf("%lf:", time_double[0]);        
@@ -69,7 +69,7 @@ main(int argc, char **argv)
 	
 	for (i = 0; i < 2; i++) {
 	   sampling = time_double[i+1] - time_double[i];
-	   if (sampling < sampling_min) sampling_min = sampling;	  
+	   if (sampling < sampling_min && sampling > 0.0) sampling_min = sampling;	  
 	 }
 	 
 	printf("%lf", sampling_min);
--
libgit2 0.21.2